public function testGetExt()
{
$this->assertEquals('php', File::getExt(__FILE__));
}
/**
* Add watermark to image.
*
* @param string $path Path to image file.
*/
public function add($path)
{
if (!($image = $this->path->path($path))) {
throw new \InvalidArgumentException("Image \"{$path}\" doesn't exists");
}
$img = $this->getResource($image);
$img = $this->addWatermark($img);
$ext = File::getExt($image);
$func = 'image' . ($ext == 'jpg' ? 'jpeg' : $ext);
return call_user_func_array($func, [$img, $image, 100]);
}